Home / 57,864.24-86,797.08-18,421.20

Finding the Fourth Proportional to 57,864.24, 86,797.08 and 18,421.20

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Solution

The fourth proportional to 57,864.24, 86,797.08 and 18,421.20 is: 27,632.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,864.24 : 86,797.08 = 18,421.20 : x
  2. Step 2: Convert to fraction form
    57,864.24/86,797.08 = 18,421.20/x
  3. Step 3: Cross multiply
    57,864.24x = 86,797.08 × 18,421.20
  4. Step 4: Simplify right side
    57,864.24x = 1,598,906,370.10
  5. Step 5: Solve for x
    x = 1,598,906,370.10/57,864.24
  6. Step 6: Final answer
    x = 27,632.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.